code: def test_nonpositive_input_dims_raises_value_error(self, layer):
      from lasagne.layers.base import Layer
  
      neg_input_layer = Mock(output_shape=(None, -1, -1))
      zero_input_layer = Mock(output_shape=(None, 0, 0))
      pos_input_layer = Mock(output_shape=(None, 1, 1))
      with pytest.raises(ValueError):
          Layer(neg_input_layer)
      with pytest.raises(ValueError):
          Layer(zero_input_layer)
      Layer(pos_input_layer)
  
imports: from mock import Mock
  import numpy
  import pytest
  import theano
label_desc: Use image node_id 15 for calling the TestLayer obj's underlying member method code with example usage: obj.test_nonpositive_input_dims_raises_value_error(layer) without return types